Improvement in hydrocarbon-gas lamps



UNI'IED STATES PATENT OFFICE.

IMPROVEMENT IN HYD Specification forming part of Letters Patent NoROCARBON-GAS LAMPS.

. 204,448, dated June 4, P78; application filed January 3l, 1878.

To all whom it may concern.-

Be it known that I, WILLIAM R. PARK, of Philadelphia, in the county ofPhiladelphia and State of Pennsylvania, have invented certain new anduseful Improvements in Hydrocarbon-Gas Lamps; and I do herebydeclare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it pertains tomake and use it, reference being had to the accompanying drawings, whichform part of this specication, in which- Figure l is a longitudinalvertical section of my invention. Fig. 2 is a detail horizontal section,and Figs. 3 and 4 modifications, of my invention.

My invention has relation to a lamp inwhich the vapor of hydrocarbonfluids or gas generated therefrom is employed for the purpose ofsupplying iame with combustible material, and in which such vapor or gasis obtained by the application of heat to such iiuid; and my improvementconsists, essentially, in the special construction, combination, andarrangement of parts hereinafter set forth, having referenceparticularly to the provision of a special passage for the exit of thegas from the fluidreservoir to the mixing-chamber, and in the meansprovided for applying the heat required to produce vaporization orgeneration to the walls of a central well or passage in thefluidreservoir.

Referring to the accompanying drawing, A designates thehydrocarbon-fluid chamber or reservoir, having a central bottomless wellor passage, A', the sides of which are composed of a cylinder, B, whoseupper and lower edges are secured to the top and bottom, respectively,of said reservoir. C is another cylinder, concentric with andsurrounding the cylinder B, leaving an annular space, c, between them.The cylinder G is fastened to the bottom al of the reservoir A; but itsupper edge terminates short of the top a, so as to leave an opening, c',to the passage c between the cylinders B and C.

D is the mixing-chamber, composed of a pipe terminating in a burner, E.The mixingchamber D is sustained upon a hollow bridge or cross-piece, F,which has openings or passages f, registering with openings b in thecylinder B, thus forming a passage from the space c to the interior ofsaid mixing-chamber. d are openings for the admission of air to themixing-chamber, and d2 are openings for the issuance of gas-jetsdesigned to play upon the cylinder B, as hereinafter set forth.

G is a hollow combining-nut or union, connecting the mixing-chamber Dwith the bridge F, said nut having an upper blank end, g, with a centralneedle-point opening for the passage of gas or gaseous vapor. H is adisk having an internal thread, h, adapted to the male thread di on themixing-chamber, and by means of which said disk is rendered verticallyadjustable. I

The operation is substantially as follows: The reservoir A is packedwith fibrous material, which is duly saturated with hydrocarbon fluidadmitted through the opening a2, said opening being then closed by meansof a screwstopple, a3. Heat being applied in any suitable manner to thereservoir A, as by holding a lighted torch close to one of its sides,the liquid within generates gas or a gaseous vapor. This gas or vaporrising to the surface iinds its way by its expansive force to thepassage c, and thence through the bridge F and combining-nut C to themixing-chamber D. Here it mingles with air and passes up to the burner,supplying the latter with combustible material for illuminatingpurposes. A portion of such gas or vapor issues through the openings d2,forming jets, which play upon the cylinder B, and, being lighted, supplyheat sufficient to continue the vaporization of the liquid or generationof gas within the reservoir A.

The disk H prevents the jets from playing upon or interfering with theburner E, and by its reiecting properties, which cause it to radiate itsheat downwardly, assists the vaporization or generation proceedingwithin the reservoir A.

A modification of the annular passage-way c may be obtained by thesubstitution of a pipe or pipes, I, as shown in Fig. 3, for the cylinderC, said pipe or pipes passing either inside or outside of the cylinderB, communicating, however, in either case with the upper part of thereservoir and with the hollow bridge F.

Still another modication is shown in Fig. 4, wherein a cylinder or wall,K, stands just within the wall of the reservoir A, leaving a narrowannular space, k, for the passage of the gas, which proceeds from saidspace beneath a false bottom, k', to the bridge F.

What I claim as my invention is- 1. The reservoir A, having a centralwellopening, A', said opening extending from top to bottom of thereservoir, and forming a through passage for air admitted below saidbottom, and a passage-way, c, for the exit of the gas, leading from theupper part of said reservoir to a mixingchainber or pipe located in saidcentral opening, substantially as shown and described.

2. The combination of reservoir A with the concentric cylinders B C,having the space or passage c and inlet and outlets c and b,respectively, substantially as shown and described.

3. The combination of reservoir A, hollow bridge F, combining-uut G, andmixing-chamber I), substantiallyv as shown and described.

4. In combination with a reservoir, A, having central passage A',extending all the way through said reservoir from top to bottom, themixing-chamber or gas-pipe D, having gasjet orifices cl2, for thepurpose of playing upon the cylinder B, substantially ,as shown and setforth.

5. In combination with the reservoir A, having central passage A' andmixing-chaml ber or gas-pipe D located therein, and formed withjet-openings d2, the threaded adjustable disk H, substantially as shownand described.

In testimony that I claim the foregoing I have hereunto set my hand this29th day of January, 1878.

WILLIAM R. PARK.

Witnesses:

GEO. C. SHELMERDINE, SAML. d. VAN STAVOREN.

